Tenders for Supply Of Whistle Brass With Chain And Ring, Fully Chrome Plated With Following Dimensions : 1 Whistle 21mm Dia 16mm Minimum And Overall Length 46 Mm Minimum 2 Ring Dia 16 Mm Maximum 3 Chain Length 95 To 100 Cms. Ring Duly Fastened To Whistle With Chain Attached To Loop Form, As Per Drawing Attached With Dimension Specified Above..