- Description
Description
Spinto SP-79 Arm Blaster
Stop your shoulders from stealing the work. The SP-79 Arm Blaster locks your elbows and upper arms in place so every curl loads your biceps directly—no swinging, no shoulder drift, just clean, controlled reps.
Why Lifters Choose the SP-79
Contoured Plate for True Isolation
The curved ergonomic plate cradles your elbows in side curves and holds your upper arms flush against your torso, keeping tension locked on your biceps instead of leaking into your shoulders or back.
5mm Thick Isolator Plate
Built from premium-grade material at 5mm thick, the plate is rigid enough to hold its shape under heavy curls, set after set, without bending or flexing.
V2 Foam Neck Padding
The adjustable strap is lined with V2 foam padding across the neck contact point, so you can grind through high-volume curl sessions without chafing or discomfort.
Heavy Metal Buckle Closure
A heavy-duty metal buckle keeps the strap cinched down and in place, so the blaster stays locked to your body mid-set instead of shifting under load.
Works With Your Existing Gear
Compatible with dumbbells, barbells, and EZ curl bars, the SP-79 slots straight into your current curl work without requiring extra equipment.
Lock your form, isolate the muscle, and let your biceps do the work they’re supposed to do.
FAQ
How does the arm blaster keep my form strict during curls?
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