Widely Wrist Suitable: Fits Fitbit blaze wrist size 5.5"-6.7"(140mm-170mm) Unique Magnet Clasp Design: Unique fully magnetic loop is infinitely adjustable, no buckle needed, super easy to remove/ replace UMTele Superiority: Personalize your Fitbit Blaze with this refined strap compared to fitbit blaze, premium materials but at much less price Comfortably Wear: Durable and woven stainless steel mesh with adjustable Milanese Loop for comfortable day to day wear. (Fitbit Blaze tracker and frame not included) Lifetime Warranty: Unconditionally refund or resend with any quality problems, life-time friendly customer service