Made Of Standard Pure Pc Material, It’s Non-Toxic And Odorless, With Far Superior Compression Resistance And Flexibility Compared To Abs Or Other Composite Materials.Superior Impact Resistance: Excellent Impact Resistance Effectively Protects Items Inside The Case While Also Providing Cushioning Against Child’s Accidental Bumps.Ergonomic Backrest: a Retractable Or Fixed Safety Backrest Is Designed On The Side Or Back Of The Case. This Provides Stable Support For Children While In The Case, Preventing Them From Tipping Over Or Falling Over.