New Other SKLZ Gold Flex Golf Swing Trainer Warm Up Stick 40 Inch Black Yellow OSFA:Black Yellow hamstring and calf muscles with 31 18.5:orange hamstring and calf muscles with graduated fit to promote circulation for muscle performance and faster recovery Flatlock seams for reduced chafing with high filament yarns for dryness wicks sweat from the skin to the fabric exterior Reflective logos for increased visibility in low light conditions Antibacterial and UPF50+ sun protection Made with Nike's Dri FIT technology and flexibility Easy to use simply “swing” the Gold Flex back and forth continually without stopping at impact position as if swinging to a metronome Fights slices and flattens the swing Low impact stretch for pre round warm up Fits easily in golf bag – legal to carry on course