Features: Heavy duty frame spring clamps crafted from nylon and ABS offer superior clamping force for woodworking, pool covers, and outdoor applications, ensuring long lastingly performances in demanding conditions. Textured nonslip grip enhances traction on surfaces like tarps and fabrics, preventing slippage even during harsh weather or frequent adjustments. Ideal for DIYer enthusiasts, professional carpenters, and outdoor enthusiasts requiring reliabled fastening solution for projects involving variable materials thicknesses. Securely anchors pool liners, workshop materials, or garden structures while resisting wind gusts up to 45 mph, making it essential for storm prone areas or mobile setups. Tool less installation and adjustable jaw width (1.2"-2.5") allow quick adaptation between tasks like securing greenhouse films, assembling temporary shelters, or stabilizing craftwork templates. Specifications: Component: Nylon + ABS Size:Approx. 6.7x5.8cm/2.64x2.28inch Size:Approx.9.5x7.1cm/3.74x2.8inch Size:Approx.11.8x9.5cm/4.65x3.74inch Size:Approx.15.7x12.2cm/6.18x4.8inch Size:Approx.21.5x16cm/8.46x6.3inch Attributes: 2, 3, 4, 6, 9 inches Package Includes: 10pcs Adjustable Tension Spring Clamp note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.