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.