This Seed & Plant Spacing Rule Is The Perfect Accessory For The Gardener, Featuring Measured Sowing Holes For Seeds With Metric & Imperial Increments, & A Printed Vegetable Spacing Guide As An Aid To Planting. Dont Leave Your Spacing To Chance. Makes The Perfect Practical Gift.ruler Features Optimum Spacing & Increments For Seed-sowing Holes, metric & Imperial Graduationsprinted Vegetable Spacing Guideprecision Machined From Beech Wood