Simple Houseware 6PK Under Shelf Basket,

Shelf Space Saver: Instantly add extra storage space by using the underside of your shelf No hardware Needed: Simply slide it onto a shelf in your cabinet, pantry room, bathroom and office desk-top. Usage:Hold food wrap, napkins, dish towels, dinnerware, bathroom accessory etc. Dimension: 12.75''L x 9.75''W x 5.5''H, Slide Arm: 6.75'' height and 1'' height (Fit most of shelf thicknesses) USPTO Utility Patent No: US9648953