EPDM Rubber Material: crafted from EPDM rubber, these black U-shaped floor floats are designed to deliver soundproofing by isolating floor joists, significantly reducing noise transmission for a quieter environment Versatile and Comprehensive Package: the package features 10 U shaped floor floats, giving you ample supply for extensive soundproofing projects, ideal for both residential and commercial applications Robust Construction for Standard Joists: measuring 2.1 inches in length, 1.5 inches in height, and 0.47 inches in thickness, these isolators are to fit standard 2-inch thick joists effortlessly Effortless Installation Process: enjoy a straightforward installation with no need for glue, nails, or screws; Simply clip the isolators onto the joist ends and position additional clips every 16 inches Effective Floor Decouplers: these floor floats function as effective decouplers, preventing structural noise transfer between floors and providing a more serene and comfortable living or working environment Color: Black Material: Rubber Package Contents: 10 x U shaped floor floats Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.