Cherry Keeper Custom - CKC-QAX9Z2-1970.8mm total length, 38x30mm head inside diameter, 31.1mm head length, 32x28mm shaft inside diameter. HeadLock is 24x16mm. Cage moved 1.2mm closer to ring to decrease ball gap. Cage angled down 5.35 degrees. HeadLock angled toward the tip at the bottom.HeadLockThe HeadLock feature adds a smaller ring to the entrance to the cage, restricting the opening in such a fashion as to hold the head in place when properly sized.  The HeadLock ring will also put an end to casual pull-out attempts if a sufficiently large HeadLock size is chosen.  No device of this style is 100% secure, but HeadLock makes it so that a serious effort must be put in to escape.Product DetailsTotal Length: 70.8mmHead inside diameter: 38x30mmHead depth in front of HeadLock: 31.1mmHeadLock: 24x16mmShaft inside diameter: 32x28mmRing to Cage Gap: 6.8mmBar Profile: Circular, 5mm diameterLocking Mechanism: Utilizes a standard chastity lock cylinder (Not included)Note: This cage includes a model name tag that must be removed with scissors or a knife before it can be used. Please remove carefully.Ball Gap: (To standard ergonomic rings +/- 0.2mm) 36mm ring: 6.7mm 38mm ring: 7.9mm 40mm ring: 9.3mm 42mm ring: 11mm 44mm ring: 12.7mm 46mm ring: 14.6mm 48mm ring: 16.6mm 50mm ring: 18.7mm 52mm ring: 20.9mm Add-On CompatibilityBullet Vibe: YesUnicorn: YesCage renders And diagrams may be shown with a compatible Cherry Keeper Ring and/or brass lock, which are not included.  Rings and locks are sold separately.This cage is only compatible with Cherry Keeper Rings.   It is NOT compatible with New Fun rings or rings from other devices. Description version v20211123 updated on 11/25/2021 1:05:08 PM