Dino lite msak810 multi angle adjustable flex arm dino lite msak810 an adjustable flexible arm that is designed to attach to the pole of a vertical stand such as 19 5899 or 19 5901 and gives additional hands free functionality for working with digital microscopes the arm has a 300mm reach and can be bent and twisted to achieve the required viewing angle dino lite msak810 multi angle adjustable flex arm for ms35b