Lotka refers to a small woody plant of the Laurel family that grows at over 6000 feet in the Himalayas, and has been traditionally used in Nepal to make paper. Lotka paper is a renewable resource, and provides a source of income to paper crafting families and village communities. Burn times stated are approximate. For you to consider, the following is from the maker's packaging:
"Natural Arogya Vaidhyaraj Dhoop Incense. This incense is prepared on the base of the ancient traditional vaidic formula of the Ayurvedic texts. The formulation of this Ayurvedic incense is prescribed by the great yogi, meditator, & ayurvedic medicine advisor. A blending of this incense is known as Arogya Blend, mostly found in the high Himalaya range like Solukhumbu, Gosaikund, Humla, Jumla & Mustang of Nepal. This incense is good for the nerves especially when feeling fragile, sharpening the senses and encouraging concentration. It contains many precious herbs including Kapur, Dhupi, Kumkum, Saffron, Nutmeg, Cinnamon, & other excellent medicinal herbs. It is perfectly safe for the inhalation and environment as well. It contains 27 sticks & 8" long. Each stick burns for 60min, 35 gms wts when packed."