Pain and Chastity? It comes all in one! 
This Short CBT Chastity Cage is not like any others. CBT play is integrated into the micro chastity cage, with 4 screws to procure erotic pain as you tighten it down. 

Microscopic sissy Chastity Cage

Included:

• 1 Penis cage
• 1 Padlock
• 1 set of keys
• 1 velvet carry bag

Cage total length :

• 2.28 inch/55 mm

Get one, two, three, or ALL 4 Curved rings:

• 1.41 inch/36 mm 
• 1.57 inch/40 mm
• 1.77 inch/45 mm 
• 1.97 inch/50 mm

Check the spare rings listing on this link.

Internal width :

• 1.3 inch/33 mm

Material:

• High-Quality Medical Grade Stainless Steel 316 L
• Easy cleaning and high-quality material ensure you will enjoy this toy for a long time.