What you received is a package of DNA model kit, including structure column, base, sill pillar, structural slab, upper cover, which is easy to assemble.The product is an enlightening teaching aid, and children can also learn simple and easy-to-understand scientific knowledge during the game to improve their thinking ability.This product is made of ABS.The length of the product is 33cm, the width is 11.6cm.The human gene DNA model is a biological science experiment equipment, an inspiring teaching aid for children.Item Name: DNA ModelsMaterial: ABSSize Details: 33cm x 11.6cm/12.99" x 4.57" (Approx.)Notes:What you received is a package of DNA model kit, you need to assemble it yourselfDue 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.Package Includes:1 Bag of DNA Models Kit 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.