●【Sizes 3#,4#,5#】Each package has size3#,4#and 5# sizes ,each size contains 50 stainless steel insect pins,150 in total ●【Quality assurance】100% stainless steel material, ●【Wide use】Suitable for collecting and making insect specimens of main sizes ●【Packaging safety】Stored in Safe Hard-Plastic Storage vials, organized and neat, easy to take out ●【100% Satisfaction】Any dissatisfaction, full refund.