This is a pair of 4x54x3mm Upper Arm Braces for the HPI Savage. FEATURES: Stock upper arm brace for the Savage X4.6 and optional upgrade for the Savage X Anodized orange aluminum INCLUDES: Two Upper Arm Braces REQUIRES: Installing on vehicle SPECS: Length: 2.1" (54mm) Width: 0.16" (4mm) Thickness: 0.12" (3mm) jxs 07/29/11 ir/jxs