S-Top width 15 cm, bottom width 13 cm, length 27.5 cm. Recommended leg circumference 30-35 cm, suitable weight: 45-60kg M-Top width 16 cm, bottom width 14 cm, and length 27.5 cm. Recommended leg circumference 35-40 cm, suitable weight: 60-70 kg. L-The upper width is 17 cm, the lower width is 15 cm, and the length is 27.5 cm. Recommended leg circumference 40-45 cm, suitable weight: 70-80 kg XL-The upper width is 18 cm, 16cm, and the length is 27.5cm. Recommended leg circumference 45-50cm, suitable weight: 80-90k XXL-The upper width is 19cm, the lower width is 17cm, and the length is 27.5cm. XXXL-Upper width 20cm lower width 18cm length 27.5cm Recommended leg circumference 55-60cm suitable for weight: 100-110kg Product weight: 100g per piece Material: Polyester Size: freely adjustable Suitable for: Adult Applicable scenarios: fitness, running, volleyball, etc. Note: Due to different display and lighting conditions, the color may be slightly different from the picture shown. Due to manual measurements, please allow a measurement deviation of 1-2 cm. Features: 1. Avoid injuries and safer training 2. Necklace strap: sticky and easy to tear 3. Double-layer packaging: safety protection of the meniscus