Pearl's Air Suspension floor tom legs counteract the deadening effects of the floor. A new tip design features a soft rubber compound with a unique hollow air chamber. This adds sustain, tone, depth and resonance. LG40 legs fit MMX, MHX, MRX and SRX (LB40) brackets. 782 Legs and LB-15 Brackets are for Export models and do not include Air Suspension tips.