Keep Jump Rope Speed Steel Wire Pro Adult Fat Burning Slimming High-End Professional Exam Middle and Primary School Silver

Aerodynamic wind resistance design for faster speed and smoother rotation

Double bearing upgrade for reduced rope lag and increased speed

Three-layer protection with water ripple soft silicone sleeve for 360° anti-slip grip, effective in dry and wet conditions, and cold weather anti-icing

Ergonomic handle with four-zone design (thumb press zone, palm grip zone, anti-slip zone), scientific front-thin rear-thick shape for comfortable grip and reduced wrist fatigue

Self-locking rope length adjustment mechanism with up to 10 cm adjustment per handle (20 cm total), strong locking force tested to 20 kg pull without loosening

High-end anodized handle surface with laser-engraved logo for corrosion resistance and long-lasting finish

Lightweight handle weighing 58.5 g each

Enhanced speed and efficiency compared to previous generation and ordinary speed ropes

Higher jump count per minute (up to 220 jumps/min vs. 180 jumps/min for ordinary ropes)

Increased calorie burn during aerobic exercise (approx. 900 kcal/hour vs. 800 kcal/hour for ordinary speed ropes)

Suitable for high-intensity sweat-inducing and competitive training

Made from 100% new materials, no recycled or waste materials used

Environmentally friendly, odorless, free from harmful substances such as benzene, phthalates, heavy metals, BPA

Certified by national and third-party authoritative testing agencies

Precision manufacturing with strict tolerance standards to ensure training effectiveness

PU material chosen for excellent wear resistance, cold resistance, and knot-free durability

Comes with a "sandwich" storage bag for convenient carrying and storage

Recommended usage on hard indoor or outdoor surfaces such as hardwood floors, rubber tracks, or concrete; avoid prolonged use on rough surfaces to prevent rope wear

Ergonomic usage instructions included for proper posture and technique

All measurements are manual and may have slight deviations. Performance data based on Keep laboratory tests; actual results may vary by individual.