The perfect companion for any Tegu Block set. Four Magnetic Wooden Wheels integrate seamlessly with an existing set of Tegu Blocks to mobilize any creation for hours of fun. Buy 1 4-pack for some rolling fun. Buy 3 4-packs to turn any Tegu Block set into a vehicular masterpiece. Includes 4 Magnetic Wooden Wheels. For ages 1+.Warning: This product contains small magnets. Swallowed magnets can cause complications leading to serious infections and death. Seek immediate medical attention if magnets are swallowed or inhaled.