Arthritis Knee Sleeve Small by IMAK Neck Pillows s sleep and allergy relief or Parkinson s s sleep and allergy relief * All of our covers are laboratory tested and efficient against dust allergens and pet dander * Zippered Mattress Cover * Twin 39 x75 x9 * Six gauge vinyl * Heavy Duty and durable * One cover per package * 100% Waterproof * Fire retardent * Notice to California Consumers: WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm * And finally we created a colorless option for patients and practitioners who prefer that * Provides mild compression to help control or decrease swelling of the joints * Cotton material allows skin to breathe and keeps hands dry