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Every WRAPDUO case is designed exclusively for the iPhone Duo.

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Grip Strengthener Spring Grip Finger Exerciser

€19,31

Buy 2 cases, get the 3rd free. Applied automatically at checkout.

Free delivery over €75 · 14-day returns

The fit

  • Two-piece fit, one half per side
  • Leaves the hinge free to move
  • Built-in MagSafe and Qi2 magnet alignment
  • Raised camera protection
  • Precision-cut access to buttons, speakers and USB-C
How the fit works
The print

Improve your hand strength, finger dexterity, and grip endurance with this spring-loaded grip strengthener. Designed for athletes, musicians, and rehabilitation therapy, it provides adjustable resistance for progressive training. Compact and portable, it's perfect for on-the-go workouts.

Color: gray, black
Usage Category: Ski gloves
Size: bagged, boxed
Applicable gender: Neutral

Size: 9.5 × 4.5 × 3.5 cm

Constructions
Delivery and returns

Free delivery on orders over €75. For smaller orders, the delivery cost is shown at checkout before you pay.

Return your case within 14 days of delivery. No reason required.

Shipping policy · Refund policy

An iPhone Duo standing half open on marble under an arch

The fit

Designed for one phone.

Every WRAPDUO case is made exclusively for the iPhone Duo: two precision-fit halves, with the hinge left free.

See how the fit works