Mexican Flame Knee TarantulasShipped sizes vary. Most species reaches a full adult size of 4 to 6 inches some insects like our giant centipedes can get much larger. Tarantulas, scorpions and insects potentially sting and or bite and can be dangerous; some are more gentle and some more aggressive. Some of the spiders and scorpions we carry have mild venom and some are more toxic or highly venomous. Before purchasing any insect please research the particulars of their care