*Compatibility: The magnetic buckle band works with I@TOUCH AIR 4 41mm / 46mm / Air 3 44mm Smartwatch *Attention: Please CONTACT US at the first time if got defective items; For 30 day after the date of purchase, we take care of all quality-related issues with a REPLACEMENT or REFUND. *The band just fit I@TOUCH AIR 4 41mm / 46mm / Air 3 44mm Smartwatch, the band width size is 24mm,, please check your watch model before you order it [EASY INSTALLATION]: Easy tool free installation with improved quick release spring bars make changing the band a snap! We have reinforced the spring bar knob so it’s no hassle to switch your strap to change up your look. [COMPATIBLE DEVICE]: Personalized your I@TOUCH AIR 4 41mm / 46mm / Air 3 44mm Smartwatch