4 Pcs Photographic equipment: 1 x chest strap and 3 x protective filmType:protective film;Compatible Action Camera Br:f DJI Osmo ActionPractical, anti-skid design, multi-purpose connection DIY super strength parts;Adjustable size chest b, anti skid firm design, do not fall off in spts.Bring wonderful moments to your photography.It is perfect f any wk-related application, power failures, camping, picnics, hiking, cycling, climbing other outdo activities.The product is suitable f DJI OSMO Actionprotective film Size: 7 x 7.2 x 3cmchest strap Size: 20 x 4 x 8.5cm / 7.8 x 1.6 x 3.3 inchesColour: Black and Transparentmaterial: plasticPackage Contents: 1 x chest strap3 x protective filmOnly the above package content, other products are not included.Note: Light shooting different displays may cause the col of the item in the picture a little different from the real thing. The measurement allowed err is 1-3cm.