The Water Slice Is An Easy To Use, Controlled Release Reservoir, To Help Sustain Plants For Weeks & Reducing The Need For Wateringsimple To Use The Water Slices Are Soaked In Water & Then Placed At The Bottom Of The Pot, Container Or Basket To Release The Water As Required Sustaining Plants At The Root Level. There Can Be No Over Or Under Watering, Just Peace Of Mind When You Are Away That Your Plants Are Still Getting Watered.the Reusable Slices Can Be Used In All Types Of Containers & Planters & Are Easily Topped Up With A Watering Can Or With Rainfall, Saving Water, Time, Money & Effort. Available In Packs Of 6 Or 12. water Slices Are A Great Solution For Holiday Wateringcan Be Used In All Types Of Containers Planterssimple To Useslow Release Of Water At Root Levelreliable Environmentally Friendlysaves Water, Time, Money Efforthelps Product Healthier Plantssupplied In Packs Of 6 Or 12