About the product This is a great value 5-piece set combining a hamster wheel that can be used with the GEX "Glass Harmony" cage and SANKO's "Strong Suction Joint." [Set Contents] Wheel 21cm Wheel 17cm Wheel Stand 21cm (unused) SANKO Strong Suction Joint x 2 The wheels are for the popular GEX Glass Harmony. This set is recommended for those who have multiple hamsters in a large cage or want to change the wheel size as they grow. By using SANKO's strong suction joint, you can firmly fix the wheel to the glass or resin surface of the cage, and it can be installed stably regardless of the bedding on the bottom of the cage. Condition of the product Used for about 3 years. There are some scratches and stains overall due to use. In particular, there are noticeable scratches and stains on the inside of the wheels and the suction cup joints. Please be sure to check the condition in the images. There are no problems with the operation of the wheels or the suction function of the suction cup joints. The wheel stand (21cm) is unused. The wheel stand (17cm) is not included. We have cleaned it as much as possible, but please understand that it is a used item. Shipping and Packaging Shipping method: Anonymous delivery (Rakuraku Mercari or Yu-Yu Mercari) Days to ship: We will ship within 1-2 days after purchase. Packaging: We will protect the product with bubble wrap, etc., and carefully package it with measures to prevent water damage. [Notes before purchase] Please check the condition carefully in the images and purchase after you are satisfied. If you have any questions, please feel free to comment. Instant purchase is also welcome! #Hamster #Wheel #SilentWheel #GlassHarmony #GEX #Sanko #SANKO #SuctionJoint #SmallAnimalSupplies #MultipleHamsters