Plastic German Prym Knitting Calculator Sweater Ruler Knitting Counter Density Ruler Sewing Tools|Sewing Tools & Accessory| - AliExpress
Top Down Raglan Sweater Stitch Calculator with Pattern, Knit sweaters in one piece | In this video you can see some sample works, all created with the help of the Raglan-Calculator.
Kniterator, the top-down raglan knitting pattern calculator