This Listing is for a (LOT OF 42) Whoop WB40 4.0 Battery for Health and Fitness Tracker. Tested and fully functional. - Please Refer to our detailed pictures for cosmetic highlights/imperfections. - Items pictured are the only items included in the listing. - NOTE TO Alaska, Hawaii, US Protectorates, Additional postage charges may apply. - We usually ship items within 1 business day after auction has been paid for. - We over pack all items with packing material to ensure safe shipping. - We sell hundreds of items and do our very best to describe items as accurately as possible. - We do not claim to be AUTHORIZED Sellers/Dealers/Retailers of any of the products/merchandise we offer. - We happily offer a free, 30-Day money back guarantee on all items unless otherwise stated, yet additional Manufacturer warranty may or may not apply. - Please Note, Auction/Listing price is as stated. - We have proudly been selling for over 20 years! - Feel free to contact us with any questions. - Please come back and look again, we list items daily. Thank you for visiting our store!