1. Smart scale: A smart scale can be used to monitor your weight and body fat percentage, which can be useful for athletes who need to maintain a certain weight or body composition for their sport. It can also provide other metrics such as hydration levels, muscle mass, and bone density.

2. Weights set: A weights set can be used for strength training, which is important for increasing muscle mass and power. Athletes in sports such as football, basketball, and track and field can benefit from lifting weights to improve their performance.

3. Resistance bands: Resistance bands can be used for a variety of exercises, including strength training, stretching, and mobility work. They can help build strength, improve flexibility, and prevent injuries. Athletes in sports such as gymnastics, soccer, and basketball can use resistance bands to improve their performance.

4. Jumping rope: Jumping rope is a great cardiovascular exercise that can improve endurance, coordination, and footwork. It can also be used for warm-ups or as a conditioning exercise. Athletes in sports such as boxing, basketball, and soccer can benefit from jumping rope as part of their training regimen.