Pull Force Pull Up Handles combine rep generating grip stamina with 'Freestyle Motion' to deliver a devastating training effect boring chin ups cant touch. Activate more muscle with less joint discomfort than common pull ups for explosive size and strength gains. All PULL FORCE Products are  Commercial Grade, Pennsylvania USA made, featuring Full Lifetime Replacement Warranties. US Patent(s)#7,008,355/#8,764,614 **INCLUDES ONE PAIR WITH 1 3/4" ROUND GRIPS