Great stitch markers from Cocoknits. Works with the Cocoknits "Maker's Keep" (sold separately HERE).
"Stitch markers come in all shapes and sizes. We love Triangles because they stick up from the work so it’s easy to get the needle tip into the corner for transferring to the other needle. Our new subdued rainbow of Earth Tone Triangles comes in a triangle-shaped kraft box and accommodates needle sizes US 0-13 / 1-9 mm. The 6 colors still coordinate with The Cocoknits Method, but are a bit more toned down than our classic colorway."