Product name: Athletics High Density Spiky Massage Balls  

ball massager 

color: blue, red, yellow, green and so on
strength in hard, medium and soft any kinds for your choice    

various colours are available

hand/foot massage ball
colors in bule, sliver, purple, red and so on
strength in hard, medium and soft  any kinds for your choice

• Great for tired feet and hands.
• Relaxing, energizing, and stimulating!
• Increases blood flow to promote healing.
• Small enough to take with you anywhere.
• Makes entire body feel good with Goosebumps