1. ADJUSTER DESIGN/CONSTRUCTION - Backboard height adjuster shall be constructed primarily of 2" round and 2" square steel tubing. Adjuster shall be designed to be no more than 3 ½" thick to minimize backboard displacement when gym floor has previously been striped. Height adjustment range shall be infinite between 10' and 8' by means of an acme screw and grade 8 nut. Roller bearings shall minimize the effort required to make height adjustments. Units not including roller bearing feature are not considered equal. Backboard mounting slots shall allow for industry standard 20"x35" mounting. A removable crank handle shall be provided with each height adjuster. A rim height indicator label shall locate rim height. Unit shall be powder coated black. Height adjuster shall carry a 10-Year Superior Warranty. Approximate shipping weight 125#.