Variant: 1 bag (2.4 kg). A tofu cat litter with added test particles that change colour on contact with blood in litter-box sample. You get an everyday check at home, and a prompt to book a vet visit if the colour changes. A check at home Traces of blood in litter-box sample are usually invisible, and collecting a litter-box sample sample from a cat is hard. The test particles turn blue on contact with colourless trace blood, detecting haemoglobin at concentrations as low as 0.1%, and the colour stays visible for 48 hours. Reading the colour White or creamy particles are normal. A faint blue tint means keep watching. A clear blue to dark blue colour means it is time to speak to your vet. The result is a prompt, not a diagnosis. Absorbent pea-fibre pellets The tofu pellets absorb like a sponge and clump quickly, so less liquid reaches the bottom of the tray and each scoop uses less litter. Two pellet sizes, less scatter Each bag is 70% 2 mm pellets and 30% 1.5 mm pellets. The mix wraps waste more completely and scatters less outside the tray. Specifications Mix ratio 70% 2 mm tofu pellets, 30% 1.5 mm tofu pellets Ingredients Pea bean dregs, starch, guar gum, occult blood test particles Weight per bag 2.4 kg Pack sizes 1, 2 or 4 bags Suitable for All cats Shelf life 24 months Good to know Use it on its own. Minerals in... Good to know Use it on its own. Minerals in bentonite clay affect the test, so do not mix it with other litters. Use a plastic tray and scoop, and keep the tray out of strong direct light. Metal friction and strong light can deactivate the test particles. Fill the litter tray to an even depth of 3-5 cm and scoop daily. One cat typically uses around 2 bags a month. It varies with tray size, number of cats and their habits. Not recommended for automatic litter trays. Results can vary with diet and other factors. If you are unsure, ask your vet. Put solids in the bin and never flush faeces. Small litter-box sample clumps dissolve in water...