TAMA bass drum beater with a wave-shaped sponge head, model BSQ10S. - Type: Sponge beater - Material: Sponge - Brand: TAMA - Design: Wave-shaped sponge head I've used it a few times, but I can't step on it softly, haha, so I haven't used it much. There are slight clamp marks on the shaft from setting it on the pedal. There is no rust. Since it hasn't been used often, the sponge has hardly deteriorated. Please understand that this is a used item, not new. Thank you for looking.