Sensory exploration is great for babies, toddlers, and children of all ages. Easy to make sensory tubes are fun to use for scientific discoveries, vocabulary expansion, refining motor skills, and cognitive development. Sensory Tubes 4 Jumbo Tubes with Lids Set by Learning Resources brings exploration activity for toddlers and preschoolers. This sensory activity kit consists of 4 sturdy clear viewing tubes (12 inches tall), 8 solid lids and 4 lids with holes. Vented lids of the tubes allow kids to safely smell or pour the sensory material. Tube lids twist to close and open. Solid lids secure the liquids inside the tubes. Fill the tubes with some common household items or art supplies, so kids can smell, touch and see them. Any interesting texture, smell or sound filler that fits into a tube will work: kernels, stickers, small pine cones, sand, yarn, glitter, water with pony beads, small pom-poms, rice, colored water, etc. Sensory Tubes 4 Jumbo Tubes with Lids Set from Educational Toys Planet helps developing senses by tactile and visual exploration.