Air plants are all one of a kind and can vary in shape and variety depending on availability. Medium sizes are approximately 2" in size, ideal for M - LG air plant holders.
Place in a bright spot in the home. Every 10 days to 2 weeks, fully submerge air plant in room temperature water for 15-30 minutes. If using tap water, let the water sit out for a few hours/overnight to allow the chlorine to dissipate before submerging your plant.
More plant care information available here.