The Olympus GS-4 Grip Strap is specifically designed for use with the HLD-6 Power Battery Holder on OM-D cameras. This hand grip strap connects to both the base of the battery holder and the camera's strap ring, providing photographers with a secure, stable grip when shooting. The adjustable Velcro closure snugly fits any hand size and improves overall camera stability, making it ideal for active photography, fast-paced shooting, or situations where extra security is needed. The GS-4 allows the camera to hang safely from your hand without requiring a constant firm grip, reducing hand fatigue during extended shooting sessions.