Search Products Shop by Category  Astronomy, Space  Batteries, Power Supplies  Biology  Books  Chemistry  Clocks, Watches  Crystal Growing  da Vinci Gear  Dinosaurs  Einstein Stuff  Electronics  Fun, Toys & Gifts  Games & Puzzles  Geology & Fossils  Glow-in-the-Dark  Laser Pointers  Light & Optics  Magnets  Microscopes  Physics  Posters, Postcards  Robots  Science Kits  Software & Videos  Solar Stuff  Study Charts  Telescopes  Videos (DVD)  Weather Instruments Shop by Price:  under $5  $5 to $10  $10 to $20  $20 to $50  $50 and up Shop by Age:  5 years old  6 - 7 years old  8 - 9 years old  10 - 11 years old  12 and older Store Info:  Catalog Request  Help / FAQ  Contact Us  Terms Of Use Order Tracking: Order No.: Password:		Cart items: 0 Total: $0.00     Jacobs Ladder »  Science eStore Home  »  Games & Puzzles  »  Jacobs Ladder This item makes a great gift! Price: $6.99 Sale Price: $4.95 each Item No: PL421 In Stock: 5 units in stock Ships same business day. Quantity:   An ancient toy featuring optical illusion and hands-on fun that never grows old. Made of 2 inch square wood blocks and colorful ribbon. Perform tricks, optical illusions and discover fun shapes with this toy. Comes in a box. Box size: 3.5 x 2.25 x 2.25 inches (9 x 5.7 x 5.7 cm) Warning: choking hazard Small parts. Not for children under 3 years of age. Recommended for ages 5 and older. Weight: 0 lb 5 oz ( 0.14 kg ) Related Products   Thermodynamic Drinking Bird Remember this hard to find toy? The ‘Drinking Bird’ is back. Item No: PL179 $5.99 $4.95 /each  View/Buy
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