Product Description
Build a fully custom thumb fit with the Turbo Switch Grip NX Blank Inner Sleeve — the empty version of the removable half of Turbo's next-generation interchangeable thumb insert system. Unlike the pre-loaded Inner Sleeve, this Blank Inner Sleeve ships with no urethane thumb solid installed, giving pro shops the flexibility to fit a custom thumb mold or their own thumb solid directly into the sleeve.
The Blank Inner Sleeve is engineered with the same oversized Dual-Winged Tabs and Dual Snap™ Locking System found across the Switch Grip NX line, so it locks into the matching NX Outer Sleeve with the same enhanced surface contact and unmistakable locked-in feel — even when built around a fully custom fit.
This blank format is ideal for bowlers who need a highly customized thumb shape, have unique thumb dimensions that don't match a standard 1 1/4" or 1 3/8" solid, or want their pro shop to mold a solid specifically to their thumb. Once fitted with a custom solid, it functions exactly like a standard NX Inner Sleeve — insert, twist, and click into the permanently installed Outer Sleeve.
Note that the Switch Grip NX Inner Sleeve features larger, redesigned locking tabs than the Original Switch Grip® and is only compatible with the NX Outer Sleeve — it will not lock into the original Outer Sleeve.
Key Features:
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Blank/empty sleeve — no urethane thumb solid pre-installed
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Ready to receive a custom thumb mold or thumb solid of the pro shop's choosing
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Oversized Dual-Winged Tabs for maximum surface contact and stability
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Dual Snap™ Locking System for a stronger, more secure, locked-in fit
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Compatible exclusively with the Switch Grip NX Outer Sleeve (not interchangeable with the Original Switch Grip Outer Sleeve)
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Ideal for bowlers needing a fully custom thumb fit
Turbo Switch Grip NX Blank Inner Sleeve FAQ
What does "blank" mean for the Switch Grip NX Inner Sleeve?
Blank means the Inner Sleeve ships with no urethane thumb solid pre-installed. It's an empty shell designed to receive a custom thumb mold or a thumb solid fitted by your pro shop, rather than coming with Turbo's standard 1 1/4" or 1 3/8" pre-installed solid.
Why would I choose the Blank Inner Sleeve instead of one with a pre-installed slug?
The Blank Inner Sleeve is the right choice if you need a highly customized thumb shape, have thumb dimensions that don't match standard solid sizes, or want your pro shop to mold a solid specifically to your thumb rather than using a factory pre-installed one.
Is the Blank Switch Grip NX Inner Sleeve compatible with the Original Switch Grip Outer Sleeve?
No. The NX Inner Sleeve, including the blank version, features larger, redesigned locking tabs that only fit the Switch Grip NX Outer Sleeve. It is not cross-compatible with the Original Switch Grip line (Turbo Grips NX installation video).
Do I need to buy a thumb solid separately for this sleeve?
Yes. Since the Blank Inner Sleeve has no slug installed, your pro shop will need to fit it with a custom thumb mold or a separately purchased thumb solid before it's ready to use.
How is the Blank Inner Sleeve different from the standard Switch Grip NX Inner Sleeve?
Both use the same Dual-Winged Tabs and Dual Snap™ Locking System and lock into the same NX Outer Sleeve. The only difference is that the standard Inner Sleeve comes with a pre-installed urethane thumb solid, while the Blank version arrives empty for custom fitting.
Can I install this myself?
Fitting a custom thumb solid or mold into the Blank Inner Sleeve should be done by a qualified pro shop technician to ensure proper shape and fit. Once fitted, inserting and removing the sleeve from the Outer Sleeve is a simple twist-and-click motion the bowler can do themselves.
What colors is the Switch Grip NX Blank Inner Sleeve available in?
The Switch Grip NX line is available in Black and Red.
