OSdream Helmet Counterbalance Weight Bag for OPS FAST BJ PJ MH Tactical Helmets/Helmet Accessories<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> This item includes only one color， not three </span></li><li><span class="a-list-item"> Total system weight 300g，Each of which counterbalance weight about 50g </span></li><li><span class="a-list-item"> Simple to install， unscrew the helmet two large screws， stacking screw </span></li><li><span class="a-list-item"> Weight bags can also be equipped with batteries </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Cfv35%2BSyL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31XfaBfHD3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41hmX-SDPxL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41y2OC16ZrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/414Xr9vTW5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51Hb9QkimkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41NoS5sTIqL.jpg" noproxy>