These all steel Poker Drop Slides are heavy duty for long term use. Our Steel Poker Drop Slide has a 1/2″ bottom steel and a 1/4″ all steel top with a spring loaded trap door. This Drop Slide has four hidden screw holes, for a professional clean look on your gaming table. These drop slides have an opening under the slide at 1-1/2″ in diameter. The rest of the slide is 3-1/2″ wide by 8-1/2″ long and 1-1/4″ tall.