HIGH QUALITY, CORROSION PROTECTION304 stainless steel rings made of high quality raw materials. No rust, corrosion resistance, high hardness. SAFE & STURDYThe commercial grade heavy duty swing hooks are designed for use by children and adults, and designed for residential use at a rating of 500kg, they are secure. EASY TO INSTALLWe have pre-drilled two holes for bolting to wooden beams or concrete. Including 2 concrete anchors and 2 hex bolts. Pre-drilled expansion screws for concrete application installed in just minutes. MULTIFUNCTIONBest use as a wall hook for sling trainer, suspension trainer, punching bag, gym, yoga, swing indoors or outdoors. PACKAGE CONTENTS1 x Durable Stainless Steel Round Eyebolts with Ring, 4 x Anchor Screws, 1 x Stainless Steel Spring Snap Hooks. Features: - Material: 304 Stainless Steel - Color: Silver - Load Capacity: 450kg Package Contents: 1 x Durable Stainless Steel Round Eyebolts with Ring 4 x Anchor Screws 1 x Stainless Steel Spring Snap Hooks.becomeveryrich