Mr Muscle 4 in 1 Active Clean In-Cistern Block - Fresh Scent | NTUC FairPrice
My Home Expelz Cleanmatic Pine Cistern Block 100 g - JioMart
ASDA In-Cistern Toilet Blocks Blue - ASDA Groceries
Flushmatic citrus cistern block pack of 1 | Harpic India
Wilko Purple Cistern Block 4 pack | Wilko
Mighty Burst Fresh Blues Toilet Block, 6 Pack, Cistern Blocks That Freshen, Cleans and Leaves Sparkling Blue Water, Freshens The Bathroom, FBTB724 : Amazon.co.uk: Grocery