kson hunting shootingaccessories Durable,light-weight design, attachment point for sling, spring loaded legs Can extend to multi Kson is a designer and manufacturer of hunting shooting products,.Bench rest: The head is fixed bench rest type, the legs without notches eject by spring action . Height settings in 15mm increments. Legs adjustable from 6"-9", or 9"-13"., or 13"-23" hunting shooting ...