Holder sonar / sonar mount

Sonar holder designed for an export ship. Material - ASA Point marked 1 in the photo: must be delimited with washers from the inside for minimal playPoint marked 2 in the photo: I used 2x M8 threaded insertsPoint marked 3 in the photo: Use 3M double-lock, water-safe Velcro to attach to your boat. ( 3M DUAL-LOCK) You need 4 M8 bolts of different lengths. Unfastened washers and nuts.For safety reasons, always attach the sonar directly to the boat using a lanyard to ensure that if the mount gets stuck and the Velcro comes loose, the sonar will not be lost.