Please use street address instead of PO BOX address. Our product comes with a one-year warranty. If you encounter any issues — including accessories, replacement parts, or repair suggestions — we guarantee a response within 24 hours.
Q: How can I get a replacement pin for this device
A: There is no "pin". It is a one-piece device.
Customers are delighted by the Chest & Arm Twister & Core Trainer's overall performance, finding it a great addition to home gyms. Users appreciate its value as a strength training tool.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

Please use street address instead of PO BOX address. Our product comes with a one-year warranty. If you encounter any issues — including accessories, replacement parts, or repair suggestions — we guarantee a response within 24 hours.

Adjustable Chest Workout Equipment, Arm Trainer for Men, Portable Arm Exercise Equipment, Home Fitness Equipment for Strength Training

FLYBIRD upgraded ab machine features a unique bottom-up movement that deeply stimulates belly fat, strengthens core, and better protects your neck/back than traditional training—ideal for toning waist, abdomen, arms, back, legs and hips. With 4 incline angles + 5 adjustable heights, it suits all fitness levels from beginner to expert, letting you customize workout intensity. Made of premium commercial steel with a triangular dual-track frame, it supports up to 330 lbs for outstanding stability. Built-in wheels ensure smooth, quiet sliding; 1.18-inch thick foam cushion and non-slip handgrips offer comfortable protection for knees and elbows. 90% pre-assembled (only 4 steps to finish), it’s foldable for space-saving storage. The LCD monitor tracks repetitions, workout time and calories burnt to help you plan exercises. Backed by 1-year frame warranty and 30-day parts coverage.

Transform your upper body with this versatile, portable strength trainer. The Multi-functional Arm Trainer uses a high-tension steel spring system to deliver effective resistance for sculpting your chest, arms, shoulders, back, and core. Featuring adjustable resistance up to 88 lbs, a comfortable non-slip grip, and a safe, durable design, it’s your all-in-one solution for building muscle, improving definition, and enhancing strength anytime, anywhere.
| Pros for FLYBIRD - Chest & Arm Twister & Core Trainer, Hydraulic Power CoreFlex Twister Chest Workout Equipment for Strength Trainer - Black | |||
|---|---|---|---|
| Overall Performance | There were no pros for this product— | There were no pros for this product— | There were no pros for this product— |