Features

• 【1-SECOND WEIGHT SWITCH】Single-hand rotary dial. 5 lb to 52.5 lb in 1 second. No waiting. No cold muscles. Perfect for drop sets, supersets, and HIIT workouts where every second counts
• 【TIME SAVING】Save 8-10 minutes per workout. That's 300+ extra sets over 12 months. More exercise. More gains. Same dumbbell. Ideal for home gym users who want efficient training
• 【15 WEIGHT SETTINGS】15 precise settings from 5 to 52.5 lb (2.5 lb increments). Light zone: +2.5 lb for shoulders. Heavy zone: +5 lb for deadlifts. One dumbbell, two training paces
• 【SOLID & DURABLE】Synthetic steel core + triple-layer premium locking discs. No wobble. Zero recalls. 50,000+ test cycles. Shake it. Row hard. Drop it. Train with peace of mind
• 【COMPLETE SYSTEM】Includes FREE workout app (FED Fitness – 100+ workouts, no subscription) + sturdy storage base + portable carry strap. Fits under bed or in closet. Perfect for apartment, garage, or small home gyms
• 【1095-DAY FEIERDUN CARE+】Full coverage on locking mechanism, adjustment dial, and all load-bearing parts. 3 years of protection. Train like you own it. We've got your back