The new ergonomically designed red button directs your thumb pressure correctly without ever looking The watertight friction mount anchors the covers securely to the scope while an airtight semi-O ring seals out dust and moisture We will ship your item immediately after your PayPal payment on the next UPS or USPS or Fedex truck. Special Requests must be Presented and Approved by us with EBAy Messaging before you Purchase the Item . Buyer may Return an Item if Returned within 30 Days of Receipt of item. Buyer may be Charged a Fee if the Item has been Damaged or Altered by the Buyer Please use Ebay messaging only to Communicate with us. Any other means of Communication will not be read. Any Special Requests or Address changes must be made with Ebay Messaging Before the item is Purchased