5/16" x 65.6ft Backer Rod for Gap and Joint Foam Caulk Crack Filler Black 74.1-66.6mm Hole Diameter: 3mm / 0

Hole Diameter: 3mm / 0

35mm/ 1/4 inch hex shank

strong bearing capacity and durable

Material: Q235 Carbon Steel

which prevents removal with normal screw drivers

5/16" x 65.6ft Backer Rod for Gap and Joint Foam Caulk Crack Filler Black 74.1-66.6mm Hole Diameter: 3mm / 0Our Backer Rod is perfect for a wide range of applications, including construction, plumbing, and automotive projects. It effectively fills gaps and joints, preventing the infiltration of air, water, and dust, ensuring a tight and long lasting seal. It can also be used for craft DIY, packaging, flower art, etc. Specification Color: Black Material: EPDM Outer Diameter: 8 mm 5 16 Inch Total Length: 20 m 65. 6 Feet Package List: 1 Pcs Backer Rod