Focused Muscle Engagement, Explosive Results Think you’ve had a killer upper-body workout? Adding Jammer Arms to your will prove there’s a whole other level to that killer workout! These game-changing Jammer Arms zero in on your arms, chest, shoulders, and back—giving you explosive power while perfecting your form with every rep. Unlike competing All-In-One Trainers that offer oversized, bulky, and cumbersome Jammer Arms you'll end up avoiding, ours are compact, lightweight, and nimble. Designed by engineers who train, we’ve packed all the power and functionality into a refined, efficient design you'll look forward to using every chance you get. Highlights Compact Design — Easy to use and store Multiple Grips – Customize every lift Quick Attach/Detach – Smooth, nimble transitions Durable Coating – Built to last Specs Engineered to fit 2" x 2" uprights Sold in pairs Come with two sets of connecting pins: 5/8" for G1-V2, G3-V2, G10, G12-V2, G15, G20-V2, C10 models 1" for G6-B, G9, and G12 models Warranty Frame: Lifetime Parts: 2 years