Perfect for when job includes high and hard to reach objects. quickly and easily convert your forklift into a mobile pivoting boom lift. telescoping boom adjusts from 84" to 147" horizontally in 7-1/2" increments and adjusts vertically five elevations up to 37 degrees (99-1/2") above horizontal. features 3' restraining chain with grab hook, swivel hooks with safety latches, ten alternate hook positions and a boom locking t-pin. maximum load on a single hook: at 36" hook position = 3000 lbs. at 146-5/8" hook position = 750 lbs. ** "s" dimension is the dimension from the center to center of the fork tine sleeves. note: osha requires contacting the manufacturer of your truck for written approval for the use of any fork truck attachments.