![Rulex 15cm 6 inch Flat Oval Metric Engineers Scale Ruler 1:10 1:100 1:5 1 :50/1:20 1:200 1:500 1:1000 - UK manufactured : Amazon.co.uk: DIY & Tools Rulex 15cm 6 inch Flat Oval Metric Engineers Scale Ruler 1:10 1:100 1:5 1 :50/1:20 1:200 1:500 1:1000 - UK manufactured : Amazon.co.uk: DIY & Tools](https://images-eu.ssl-images-amazon.com/images/I/51s3ZtyLeHL._AC_UL600_SR600,600_.jpg)
Rulex 15cm 6 inch Flat Oval Metric Engineers Scale Ruler 1:10 1:100 1:5 1 :50/1:20 1:200 1:500 1:1000 - UK manufactured : Amazon.co.uk: DIY & Tools
![HAND H0910 Professional Metric Triangular Ratio Scale Ruler 30 cm - 1:100, 1:200, 1:250, 300, 1:400, 1:500 Scales : Amazon.co.uk: Stationery & Office Supplies HAND H0910 Professional Metric Triangular Ratio Scale Ruler 30 cm - 1:100, 1:200, 1:250, 300, 1:400, 1:500 Scales : Amazon.co.uk: Stationery & Office Supplies](https://m.media-amazon.com/images/I/61AQ7cVscsL._AC_UF350,350_QL80_.jpg)
HAND H0910 Professional Metric Triangular Ratio Scale Ruler 30 cm - 1:100, 1:200, 1:250, 300, 1:400, 1:500 Scales : Amazon.co.uk: Stationery & Office Supplies
![Triangular Scale Aluminum Triangular Scale 1: 100, 1: 200, 1: 250, 1: 300, 1: 400, 1: 500, 30cm Long Triangular line : Amazon.co.uk: Stationery & Office Supplies Triangular Scale Aluminum Triangular Scale 1: 100, 1: 200, 1: 250, 1: 300, 1: 400, 1: 500, 30cm Long Triangular line : Amazon.co.uk: Stationery & Office Supplies](https://m.media-amazon.com/images/I/81nlFw5qt8L._AC_UF894,1000_QL80_.jpg)
Triangular Scale Aluminum Triangular Scale 1: 100, 1: 200, 1: 250, 1: 300, 1: 400, 1: 500, 30cm Long Triangular line : Amazon.co.uk: Stationery & Office Supplies
![Aristo AR23705EB College Triangular Scale (Reduction 1:500 :1000 :1250 :1500 :2000 :2500, Plastic, 30 cm Long) for Measurements (C) : Amazon.co.uk: Stationery & Office Supplies Aristo AR23705EB College Triangular Scale (Reduction 1:500 :1000 :1250 :1500 :2000 :2500, Plastic, 30 cm Long) for Measurements (C) : Amazon.co.uk: Stationery & Office Supplies](https://m.media-amazon.com/images/I/71nSoMuTTXL.jpg)