1. Put at least $24.99 of cool items in your Shopping Cart, then click Checkout.
  2. Select Standard Shipping as your shipping method.
  3. Place your order, and enjoy free shipping!

Free shipping is only valid on orders of $24.99 or more. Available only on orders shipping in the lower 48 states, excluding air freight. This offer is only good for U.S. Standard shipping pending credit approval and authorization. No discount code is required to take advantage of this offer. Orders must total $24.99 or more (not including tax, gift cards, warranties, or shipping). Not applicable toward previously purchased merchandise. Free shipping promotion and associated terms and conditions subject to change at Kotula's sole discretion.

Build a Working Model of a 4-Cylinder Engine!
 
 

Build a Working Model of a 4-Cylinder Engine!

List $79.95
Only $39.99
You Save $39.96

Lowest Price Guarantee
Lowest Price Guarantee

If within 30 days of your online purchase at Kotulas.com, you find the identical product nationally advertised for less by one of our competitors, we will refund to you 110% of the difference!

Nationally advertised low prices found online must be printed out completely with proof of competitor's name and the offer's expiration date clearly visible. To receive your refund, please mail a copy of the advertisement with the offer's expiration date visible, together with a copy of your invoice to:

Kotula's Ecommerce Marketing
P.O. Box 1499
Burnsville, MN 55306-6936

Valid on retail price of item only, not on shipping and/or handling charges. No close-outs, misprints, price quotes, coupons, rebates, auction websites or liquidations. Also not valid on Member Club pricing. Item must be identical make and model#. Competitor product must be available and in-stock at the time of claim. Please allow 6 weeks for processing.

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Are your kids ready for a challenge beyond snapping together a see-through model of the human body? Here you go! Let them immerse themselves in a world of adventure and discovery as they build a real battery-powered 4-cylinder model engine, piece by piece. When they are done, they'll have a model adorned with moving parts, lights and realistic engine sounds. Valves open and close, spark plugs fire and pistons drive the crankshaft, just like a real internal combustion engine. The kit contains 100 parts that screw together easily, along with clear instructions. Motor requires 2 AA batteries, not included. Also includes a large 35in. x 28in. color poster for hanging on their wall. Ages 8 and up.


Suggested accessories:

Duracell Coppertop Batteries — AA Size, 8-Pk.

Order Over $25 for Free Shipping!

Item# 21877
Only $7.99
Duracell Coppertop Batteries — AA Size, 8-Pk.
Duracell Coppertop Batteries — AA Size, 8-Pk.

Order Over $25 for Free Shipping!

Item# 21877
Only $7.99


Description:
More power to ya with Duracell Coppertop batteries, engineered to deliver the right level of power for your business or household needs. Batteries are guaranteed to remain fresh for up to 7 years. Individually date coded to ensure freshness. Environmentally friendly batteries are mercury free and work in a wide variety of devices. Pack of 8. U.S.A.

 

Check out some of our other amazing gear!

Bounty Hunter Discovery 3300 — A Real Treasure

FREE SHIPPING!

Item# 25860
Only $349.99
Bounty Hunter Discovery 3300 — A Real Treasure
Bounty Hunter Discovery 3300 — A Real Treasure

FREE SHIPPING!

Item# 25860
Only $349.99


Description:
This top-of-the-line, easy-to-use metal detector rewards users with bountiful results. From finding coins, relics and jewelry, to cache hunting or locating lost property markers, this unit thrives on precision and accuracy. The incredible 11-segment digital target ID locates targets with ease, then helps to identify them by assigning them a digital target value. A digital probable coin depth indicator helps you figure out how deep to dig. Easy Touch controls make changing sensitivity or discrimination settings a snap, and one-touch "Zap" feature automatically eliminates unwanted metals. The treasure chest of extras also includes Pinpoint mode for the most accurate, deepest detection you'll find on any Bounty Hunter unit. Operates on two 9V batteries (not included). 5-year limited warranty. U.S.A.

Manufacturer Warranty:
 5 year limited warranty

 
Barska Digital Microscope Delivers a Really Close Look

FREE SHIPPING!

Item# 7619
List $843.75
Only $299.99
You Save $543.76
Barska Digital Microscope Delivers a Really Close Look
Barska Digital Microscope Delivers a Really Close Look

FREE SHIPPING!

Item# 7619
List $843.75
Only $299.99
You Save $543.76


Description:
This advanced professional grade digital microscope is equipped with a high-resolution 3.5in. TFT Screen for easy and comfortable viewing for individuals or groups. It features a built-in digital camera for snapshots or short videos, which can be stored on the 64MB memory, or on an SD memory card. Three objective lenses provide 40X, 100X, and 400X optical magnification levels. The 4X digital zoom allows you to view objects at up to 1600 times their original size. You also get top and bottom LED Illumination, brightness controls and a six position color filter wheel that lets you get a bright and clear view of your specimen. Windows XP and Vista compatible.

Manufacturer Warranty:
 12 months limited parts / No labor

 
Thames and Kosmos Wind Power 2.0

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Item# 15357
List $49.99
Only $39.99
You Save $10.00
Thames and Kosmos Wind Power 2.0
Thames and Kosmos Wind Power 2.0

FREE SHIPPING!

Item# 15357
List $49.99
Only $39.99
You Save $10.00


Description:
Explore an amazing, free source of renewable energy and store the electricity you generate for use in practical applications. You'll absolutely love the creativity, science and self-sufficiency provided by Wind Power 2.0. Vehicles require AA batteries (not included).