You Matter Vinyl Wall Decal designed to use your classroom clock as the O. Please note that the Y and U will come separate along with the MATTER portion of the decal. Make sure your wall is appropriate for our Oracal 631 vinyl (please see FAQ for appropriate wall applications). Made using the highest quality indoor vinyl (Oracal 631), it is easily applied and removes without leaving a sticky residue behind. For the 12" Version: The Y and U are 12" in height to match most classroom clocks. MATTER is just under 8" tall and 38 inches wide. For the 10" Version: The Y and U and 10" in height to match 10" clocks. Matter is just under 6 2/3" tall and 32 2/3" wide. For the 9" Version: The Y and U are10" in height to match 9" clocks Matter is 6" tall and 32 1/3" wide. If you need a customized version of this decal or different colors than are listed, please do let me know. I've included a color chart as one of the pictures for your convenience. Select the appropriate size for your needs from the drop down when ordering. I would highly recommend measuring your area first before ordering. Any questions? Let me know! See my classroom door deals at: https://www.etsy.com/listing/454271836/hello-its-a-good-day-to-have-a-good-day?ref=shop_home_active_9 and https://www.etsy.com/listing/531741374/welcome-come-in-cause-were-awesome-vinyl?ref=shop_home_active_11 See other inspiration wall vinyl decals for the classroom at: https://www.etsy.com/listing/473582289/walk-in-smart-walk-out-smarter-wall?ref=shop_home_active_15 https://www.etsy.com/listing/547730745/believe-in-yourselfi-dowall-decal-school?ref=shop_home_active_4 https://www.etsy.com/listing/458985044/what-i-like-most-about-my-classroom-wall?ref=shop_home_active_13