Hit them where it hurts by crushing their family jewels.
Made for erotic torture this a true S/M device.
This crusher attaches to our ball stretcher using the wingnuts you move the bar up and down to increase pressure or "crush effect" on their balls.
 
Material: Stainless Steel
Ball Stretcher Inside Dia: 3.4cm/1.3 inch
Ball Stretcher Outside Dia: 6 cm/2.4 inch