Adjustable jaw fits all vinyl frame rail thicknesses from 1/16" up to 1/2 in. thick. "Vise like" grip holds securely and will not mar inside frame. Allows window to lock in ventilating position; cam style locking lever; no tools required. Material: Diecast, Color: White, Length: 1-3/16", Width: 1". Sold in pairs, price above is for (2) pieces. Please click on the pictures above for detailed measurements.