Canine Collagen Type Ⅳ(COL Ⅳ) ELISA Kit is designed and made by Cusabio for detectingCollagen Type Ⅳ(COL Ⅳ). For more product information, please check the following link: http://www.cusabio.com/product/ELISA_Kit/Canine_Collagen_Type_4(COL_4)_ELISA_Kit-72002.html.