For small flip phones and anything around 3.5 in. height. For fit, simply measure the height of your device (excluding antenna). If it's around 3.5 in., this is the holster for you. Variations in width and thickness are accomodated by elastic retention. Comes with our heavy duty spring steel clip pre-installed for quick and secure attachment to pants belt, duty/rigger's belt, waistband, pocket seam, backpack strap, etc. Clip will fit 2.25 in. duty belt.