The HEINE S-FRAME Retaining Cord is an essential accessory for HEINE S-FRAME loupes. It helps secure the loupes comfortably in place during use. The retaining cord is designed to prevent accidental dropping or misplacement of the loupes.

HEINE S-FRAME Retaining Cord is compatible with various other accessories, such as the HEINE SIGMA 250 Binocular Indirect Ophthalmoscope and the HEINE HRP High Resolution Prismatic Binocular Loupes