The case-gard r-100 ammo box is designed for great afternoon of varmint or competitive shooting.It is made of indestructible polypropylene that will not warp crack chip peel expand or contract.The r-100 features a mechanical hinge and textured finish which makes it easier to grip and harder to scratch.Calibers: oal 2.65" 17 fireball 17 mach 4 17/221/222/223 rem. 204 ruger 218 bee 222 rem.Mag. 223 rem.Hp 25-20 win. 300 blackout 300 sherwood 300 wisper 32 ideal 32/401 win.S.L. 350 legend 351 wsl 38-55 win. 5.56x45 6x47 6mm tcu 6mm-223 rem. 7.62 x 37 musang.Type: Ammo BoxModel: Case-GardFinish: Clear BlueSize: 17/221/223Material: PolypropyleneCapacity: 100rdDimensions: 2.65" Max OALHardware: Snap Latch