Specifications Uses: Adds height to the toilet seat for stability and to reduce bending and twisting Dimensions For Standard Seat: Length of seat from front to back: 17.25” Length of seat inside from front to back: 11.25" Width of seat from left to right: 13.89” Width of seat inside from left to right: 10.25” Height of seat: 3.5” Thickness of seat: 2” Handle width: 22” Handle length: 12.5” Distance between handles: 19" Dimensions For Elongated Seat: Length of seat from front to back: 19.25” Length of seat inside from front to back: 13.25" Width of seat from left to right: 13.75” Width of seat inside from left to right: 10” Height of seat: 3.5” Thickness of seat: 2” Handle width: 21.25” Handle length: 14.5” Distance between handles: 19" Materials: Composite Aluminum EVA foam How To Attach Removable Handles: Find the right side handle marked with an “R” and a blue arrow. The left side handle is marked with an “L” and a red arrow Slide each arm into the seat by pressing the brass pin on the arm and sliding each arm into position. Make sure the pin is facing out You will hear a click and see the pin emerge through the positioning hole when the arm is in place How To Install: Remove the existing toilet seat and lid from the toilet Place the toilet seat riser on the rim of the toilet and center as necessary. Make sure the lip underneath the riser is inside the bowl Attach the original toilet seat and lid on top of the toilet seat riser using the included hardware. Thread the screws through the holes in the back of the seat. The plastic washers are placed on the top of the screw and the metal washers are placed on the bottom. Tighten each screw with the butterfly nuts Care Instructions: Wipe down seat riser and handles with a traditional disinfectant solution What’s Included: Raised toilet seat with removable handles 2pc - 6.125” long screws (Flathead) 2pc round plastic washers (1.18” outer diameter) 2pc round metal washers (0.95” outer diameter) 2pc butterfly nuts Lifetime Guarantee UPC: 818323021301 (Standard); 8323021295 (Elongated) Product Number: LVA1071S (Standard); LVA1071E (Elongated) Shipping Weight: 5.5 - 5.8 pounds User Manuals:  Standard Toilet Seat Riser with Arms