MEASURES ABOUT 36" X 24". I THINK THIS GOES OVER THE BOTTOM PORTION (IT'S GOT LITTLE TABS OR BANDS ON THE BOTTOM TO SECURE IT TO THE CORNERS) OF SOME PLAY PENS (CHECK THE MEASUREMENTS OF YOURS). IT COULD ALSO BE USED ON IT'S OWN ON THE GROUND FOR TUMMY TIME OR ATTACHED TO THE BACK OF YOUR CAR SEAT TO GIVE BABY SOMETHING TO LOOK AT. PROMOTES VISUAL DEVELOPMENT, HAS DIFFERENT TEXTURES, MIRROR (BABY SAFE, HAS SOME WRINKLES IN IT), CRINKLES, SQUEAK SOUND, AND FLIP OVER TABS. USED, NO RIPS OR HOLES. MAY HAVE A FAINT STAIN OR TWO. FROM A CLEAN, NON-SMOKING HOME. YOU WILL RECEIVE EXACTLY WHAT IS PICTURED/PHOTOGRAPHED.TIP: MOUSE OVER OR CLICK ON THE PHOTO TO VIEW A POP-UP OF AN ENLARGED VERSION OF THE PHOTO TO SEE ALL THE DETAILS! WE GUARANTEE YOUR SATISFACTION WITH YOUR PURCHASE OR YOUR MONEY BACK! YOU CAN PURCHASE FROM US WITH CONFIDENCE, WE HAVE SOLD OVER 6,000 ITEMS TO HAPPY BUYERS JUST LIKE YOU. MOST BUYERS RECEIVE THEIR ORDER WITHIN 2-4 BUSINESS DAYS OF PAYMENT. AND WE PACK EVERY ITEM WITH CARE TO ENSURE YOU RECEIVE IT IN THE SAME CONDITION AS IS DESCRIBED AND PHOTOGRAPHED IN THE LISTING! QUESTIONS ARE WELCOME, WE WILL REPLY QUICKLY.