Designed according to America technology . Mainly applicable for fertilizer, sowing seeds and mixture of fertilizer and seeds. Could be used in the concave and convex environments such as gardens and orchards. Steel seeder/spreader gives new meaning to the word adaptable. With this one tool you can spread seed, granular fertilizer, crystalline herbicides, pesticides and sand.. The seamless all steel seeder\spreader is strong enough to endure rough handling and heavy use.