This is a Dave Brown Glass Filled Nylon Motor Mount for .09 to .11 engines. FEATURES: Glass filled nylon construction, black in color INCLUDES: One motor mount Four 3x12mm self-tapping screws for mounting engine to mount REQUIRES: Drilling holes into mount to attach engine to mount GPMQ3500 to mount to firewall SPECS: Length: 1.5" (39mm) front to back 1.2" (32mm) length of arms Width: 1.5" (38mm) 0.27" (7mm) width of arms Distance between arms: 0.9" (23.5mm) inside to inside 1.2" (30.5mm) center to center Diameter: 1.5" (38mm) of portion that mounts to firewall Thickness: 0.29" (7.5mm) of portion that mounts to firewall Diameter of firewall mounting holes: 0.12" (3mm) COMMENTS: Dave Brown Engine Mounts are made of glass-filled nylon for strength and stability. They have mounting holes which are identical to those in the Kraft mount. updated tjt 060104 ir/jxs