1、It is recommended to use clothes, rags, foam, sawdust, sponge, etc. for the filling. 3 thick metal rings are firmly sewn on the bag to clamp the attached installation chain. 2、Easy to fill and install settings. The top of the bag can be found through the zipper closure for easy filling. 3、The outer shell of the Oxford cloth is abrasion‑resistant and explosion‑proof, and the middle filling is a foam sheet to absorb and distribute the punching impact. 4、The inner lining is made of silk CR fabric. Children can spend a very enjoyable time with these sandbags. 5、A healthy way for children to relieve excessive stress. They are energetic, never tired, and can keep their bodies strong. 1 x Sandbag1 x Iron Chain1 x Chain Buckle2 x Handguard1 x Accessories  Item Type: SandbagMaterial: Oxford Canvas+CR+foam sheetSize After Filling: Approx. 80x30x30cm/ 31.5x 11.8x 11.8inUse Age: 7-14 Years OldMaximum Bearing Weight: 25kgRecommended Fillings: sawdust, flower rags, rag clothes, silk cotton, wheat, corn and beans