Made of a highly durable polypropylene compound Helps prevent against unwanted connection of tractor trailers Quick, convenient, and easy to install deterrent, fits most standard, angled, and swinger gladhands. Economical alternative to more expensive metal locks that can rust Each lock comes with 2 keys, replacement keys are not available One pair of gladhand locks with keys. Helps prevent against unwanted connection of tractor trailers. Made of a highly durable polypropylene compound. Quick, convenient, and easy to install deterrent. Fits most standard, angled, and swinger gladhands. Economical alternative to more expensive metal locks that rust. Each lock has 2 keys. Replacement keys are not available. Replaces: Tramec Sloan️#59001 Phillips️#12-700 Tectran️#1011LK Approximate dimensions = 3 1/4" x 2 1/2” x 2” Approximate net weight = 2.2 oz ea.