DescriptionIt is a DIY double helix model material, it can exercise your children practical ability, train your children observation capability, thinking and analytical skills. Let them learn with happy. It is made of material, which is durable and lasting for use.Features- Color: As shown.- Material: PP.- Size: 33 x 11.6 x 11.6 cm.- Train your children observation capability, thinking and analytical skills.- Made of material, which is durable and lasting for use.- Happy and easy to learn. Exercise your children practical ability.- Learn scentific tips is a good gift for kids for early educational.- Nice kids and students educational toy that you can have one and let your kids have a great fun from it. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.