DescriptionThese strap buckles are easy to use, just need to simply push button to quickly detach and attach sling. Made of steel material, durable, practical and lightweight, fit with most slots. They can be used for a long time without wear or tear. Come and take them home!Features-Color: Black.-Material: Steel. -Size: About 5.50X4.30X0.10cm /2.16X1.69X0.04inch. -They work great and allow sling access from both sides. -Quick detach push button design, fast install and release. -Easy to use this sling swivel mount, great buckle and base. -With portable size, could also carry them anywhere anytime. -Made of good quality material which is durable and practical.