description king crawler w/ 5 in. pvc casters w/brake this king crawler model adds the patented lever-lock brake system. you apply the brake with a lever that is easily actuated while lying on the creeper. once the lever-lock brake is applied you have excellent leverage to effectively loosen, tighten or otherwise manipulate tools and parts. the lever-lock system is only available on the world's best creeper. the king crawler. california proposition 65 warning. specifications acme tools brand name traxion acme tools part number 1-220 assembled weight (lbs) 5.0 california proposition 65 warning required yes globaltradeitemnumber (gtin) 00856213002023 package depth 7 package height 44 package weight 30 package weight (lbs) 6 upc 856213002023