First Aiders Choice premium heavyweight conforming bandage is ideal when applying the Pressure Immobilisation Technique recommended for anyone bitten by a venomous snake. This bandage will help to stay calm and focused during an emergency, as the rectangle indicator becomes a square to let you know when optimal tension has been achieved. The rectangle indicator is continuously marked on the bandage to ensure correct pressure over the entire limb is applied. Suitable for the treatment of Australian snake and funnel-web spider bites and also Blue-ringed octopus and cone shell stings.