Gorilla keychain is our gift. dimensions: 40x30x1514 inch laptops can fit easily. large size can fit many books and notebooks easily. special sucker place on 2 sides1. it is made of high-grade material and you can use it comfortably for many years without wearing out. thanks to its water-resistant feature, you can use it for 4 seasons. This publication is ideal for readers seeking insightful and educational content. Prepared by experienced authors and printed with high-quality materials. Great for students, educators, and curious minds.