Fangrui Product Details Pp Material Is High Quality, These Adjustable Furniture Risers Are Made Of Pp Plastic, This Material Has Excellent Performance In Strength Hardness And Elasticity, And Also Has Good Fireproof Or Waterproof Performance, Making The Leg Lifter More Stable And Durable To Lift Heavy Furniture Like A Bed Or Sofa Lasts Longerpp Material Is High Quality, These Adjustable Furniture Risers Are Made Of Pp Plastic, This Material Has Excellent Performance In Strength Hardness And Elasticity, And Also Has Good Fireproof Or Waterproof Performance, Making The Leg Lifter More Stable And Durable To Lift Heavy Furniture Like A Bed Or Sofa Lasts Longerpack Of 4 40x52mm Large Risers, Suitable For Most Sizes Of Home Furniture Legs, Up To 15cm In Height, Can Meet Your Individual Needs. For Example, You Can Raise Your Bed To Make The Most Of The Space Under It, Or Adjust The Height Of Your Chair Slightly To Prevent Neck Or Back Pain Anti-slip And Protect Your Floor, As Mentioned Before, This Pp Plastic Material Is Very Stable And Not Easy To Slip, You Can Sit Or Lie On It With Confidence And Don't Worry About Slipping, Besides, The Foot Pad Is Also A Choice For You Avoid Floor Scratches From Furniture Legs, Make Your Home Look More Perfectpack Of 4 Is Widely Used, There Are 4 Packs In The Whole Furniture Riser Set. Thanks To Their Performance And Heavy-duty Capacity, You Can Use Them To Lift Up To 500kg And Fit Almost Any Piece Of Furniture You Want. I Believe This 4-pack Can Fully Meet Your Needs, And The Colors Are Also Very Nice, Which Can Be Used As Exquisite Decorations To Embellish Your Furniture And House