description 3 rung model long body ladder jack 3 rung model ladder jack accepts stages up to 20 in. in width. (shipping qty 2 per package). california proposition 65 warning. features lightweight, sturdy, easy to use designed for quick field adjustments mounts on either side of extension ladder 3-rung model accepts stages to 20-in width recommended for use with 300 lbs type ia and 375 lbs type iaa extension ladders (osha and ansi allow use with 250 lbs type i extension ladders) platform clamp system secures platform to ladder jacks and ties supporting ladders together to help secure entire ladder jack system specifications acme tools brand name werner acme tools part number ac10-20-03 ansi approved yes assembled weight (lbs) 20.0 california proposition 65 warning required no color / finish gray country of origin china globaltradeitemnumber (gtin) 00051751039153 internal supplier part # ac10-20-03 internet product code (ipc) 2055b6f4d80 ladder accessory category ladders ladder type ladder accessories length (in) 20.0 manufacturer warranty none material aluminum meets ansi or osha standards yes osha approved yes package depth 30.48 package height 12.96 package weight 20 package weight (lbs) 20 upc 051751039153 width (in) 20.0