You are getting 10 pieces R188 Ball Bearings, R188 is a popular size that could be used in many application like the fidget hand spinner, size is 1/4" x 1/2" x 1/8". Bearings are made of Chrome Steel.

• Item: Ball Bearings R188 Free Spin
  
• Size: 1/4" x 1/2" x 1/8"
• Type: Deep groove ball bearings R188
• Closures: Open
• Quantity: 10 Bearings