Dynamic Gold AMT Tapered TipDynamic Gold AMT shafts have the same performance DNA as Dynamic Gold and are designed to get progressively heavier as golfers move from their long iron to short iron. Lighter long irons produce increased speed and higher initial launch, which makes them easier to swing and deliver a softer landing. The Tour-weighted short irons produce traditional Dynamic Gold accuracy, consistency, and trajectory. AMT stands for Ascending Mass Technology, which means the shaft’s weight increases in 3-gram increments throughout the set, while the balance point is adjusted so that the swing weight of each club is consistent to standard Dynamic Gold. Shaft Bands are included, not affixed to the shafts. SPECIFICATIONS TAPERED IRONS PRODUCTS FLEX WEIGHT DIA. BUTT/TIP LENGTH FLIGHT S300 S300 112-130g .600"/.355" 40-37" LowX100 X100 112-130g .600"/.355" 40-37" Low Thank you for looking. Please keep in mind that there are No Returns on Custom Assembled Items or Used Products. There is a 20% Restocking Fee on all other returned items. Thank you for your time and understanding.