Corner Minders colors available for Wholesale Custom Colors can be ordered by shops by sending an email to [email protected] to discuss options. Meet Corner Minders™ — the easy way to keep your needlepoint stretcher bars locked in and perfectly square. These 3D-printed corner clips fit standard mini stretcher bars and hold them at true 90° angles without tacks, tools, or extra fuss.Just pop them on and your frame stays put — no shifting, no wonky corners, no stress. Lightweight, reusable, and designed for stitchers who want a smoother setup and a better stitching experience. Like most 3D-printed pieces, they’re happiest away from prolonged excessive heat. Each package contains 4 corner minders. Starlight has a shimmering and/or color-change effect. Glitter has larger glitter flakes in the material. Rainbow is a gradient of color and all individual corners could be slightly different from one another.