The button is only the lock it does not open the knife. 7 inches open 3 inch ball bearing open stainless steel blade. Aluminum handle, Button lock, Dual studs, Steel clip, 2.40 ounces. Very nice!! FOR MULTIPLE ITEM PURCHASES I DO COMBINE SHIPPING BY WEIGHT TO SAVE YOU MONEY ON SHIPPING EXEPT WHEN SHIPPING IS ALREADY FREE. IF YOUR COMBINING SHIPPING PLEASE EMAIL ME AND LET ME KNOW THANKS FOR EVERYTHING! AND IF THERE IS EVER A PROBLEM WITH AN ITEM YOU RECEIVE FROM ME AND YOU FEEL LIKE LEAVING NEGATIVE FEEDBACK DONT DO IT!!!! CONTACT ME FIRST AND I WILL FIX IT ANY WAY I CAN I PROMISE!! CHECK OUT MY OTHER ITEMS BY CLICKING ON MY STORE DOOR OR SEE OTHER ITEMS UP ABOVE ON THIS PAGE.