Aditya promotors ltd. Offers aditya `penguin` vacuum flasks. This flask is made from sturdy stainless steel outer body with chromed flap. This is available in capacities of 750/1000/1500ml. Aditya is a pioneer in stainless steel body flasks and has combined the strength and rustproof properties of stainless steel and insulating and hygienic properties of vacuumised and silvered glass refills.