Gibraltar GGS10S Short 21" Stool with Round Seat, Fold Up Tripod with Foot RestGibraltar has developed compact performance stools, new seating options for all musicians. These performance stools are built with Gibraltar hardware features like the super rubber foot that creates a solid foundation, all cast metal parts with no metal to metal contact, tripod memory lock, and adjustable footrest. All add up to solid seating in a compact package. Available in 21 or 27 fixed heights with tripod memory lock 13 round seat 2 padding