Johnson Level 40-6335 Contractor Grade Heavy Duty Tripod, AluminumDurable aluminum construction with extendable legs. Adjustment range from 4' to 5', nominal length. Quick connection for lasers with 5 8", 11 threads, feet have sharp metal points for use outdoor and removable rubber covers for use indoors. includes: Plumb bob hook. Durable aluminum construction with extendable legs Adjustment range from 4' to 5' (nominal length) Quick connection for laser levels with 5 8" 11 threads Feet have sharp metal points for