Laser Tek Services &reg; Drum for Brother DR-350 TN-350 Do-It -Yourself-Kit!! Package contains 1 Do it Yourself Drum replacement kit for the DR350 Laser Tek Services offers a 100% Satisfaction Guarantee on all of our products. If you are not satisfied with your product, call us and we will either exchange it or give you a refund Ships Directly from our warehouse within 1 business day!