Interface Pad 3.5inch*7.0inch (90*180mm) 3+2+3 Hole

Made of well-selected fabric, foam and Velcro by high-precision processing machines and cutting device. Protect backup pad Velcro and work as a buffer for soft and gentle sanding purpose. Flexible soft foam supports to reach cambered surface for sanding work. Durable and can be stored over 5 years in a dry and air-free room under an appropriate temperature. Velcro Options: Standard long-hook Velcro and micro Velcro. Size, thickness and hole pattern can be customized to cater for different backup pad and abrasives.