SENSEI Penny Spinner is precision crafted out of high quality copper. The design delivers a solid, heavy feel and perfect balance for longer spin times. The heavy duty copper body is extremely durable and will take plenty of abuse without damaging the spinner. This truly is a unique, premium spinner that will impress everyone around you. The bearings are hybrid ceramic Si3n4 bearings which deliver longer, smoother, quieter spins than lower quality steel bearings used by most spinners. The bearing caps on the spinner are removable to easily keep the bearing clean and free of dust and dirt. This allows the spinner to have a better spin while prolonging the life of the bearing. Every purchase includes a premium zipper carrying case and soft pouch to protect your investment. The zipper pouch is great for taking your spinner with you for daily activities or travel. The soft pouch can be used for extra protection against scratches and dings if carried in your pocket or purse. It also gives you a way to clean and polish the spinner. Worry Free 100% Money Back Guarantee - As a small business,we take pride in delivering high quality products and customer service out of Birmingham, AL to all of our customers. While we are confident you will love your new spinner, if you aren't satisfied for any reason, you can return your spinner within 30 days of delivery for a full refund. No questions asked. We will do what it takes to make things right! How to use: There are many ways to use your SENSEI spinner. The most common way is to simply hold the spinner in the middle using your index finger and thumb. Take your other hand and flick the spinner to make it gain speed and momentum. The harder you flick the spinner, the faster and longer it will spin. Another common use is to lay the spinner on a hard flat surface before flicking it. This is one of the best ways to get the longest spin times. Use your imagination, the possibilities are endless.