Easy DIY installation, no tool needed. Fits over the original headband and zip up in place. Don't need to remove the original headband. Can be used to cover your wear out headband or protect it from scratch, sweat. Also as extra pad to improve the wearing comfort. This headband protector is compatible with ATH-ANC9, ATH-ANC70, ATH-ANC7B, ATH-ANC27x, ATH-ANC29, ATH-ANC700BT, ATH-ANC900BT, Denon AH-D401, AH-D320, AH-D510R, AH-D310R, AH-D400, AH-A100, AKG K553 PRO, K167, K553 MKII, Y500, Soundcore Anker Life Q20, Life Q30, Life Q20+, Space Q45, JVC HA-S200, HA-SR185, HAS80BN, HA-S660, HA-S88BN, HA-XP50BT, HAS90BNB, HA-S38BT headphones. Product Dimensions: 4.9 x 2.7 inches (12.5 x 7 cm), Color: Black Package Contents: Headset headband cover x 1