Plum Garden DIY Mini Hand Saw Model Craft set?DIY Razor Saw tool Kit with Multifunction Craft Blades

Feature: Material: Metal+Plastic. Overall Length: 19cm/7.48'' (Approx.) Blade Length: 6.5cm/2.56'' (Approx.) Color: As the pictures shown. Package Included: 1 x Mini Saw 3 x blade. How to change the blade? 1.To rorate around the end of penholer in order to loose the clam. 2.Take off the blade carefully. 3.Put the replacement blade. 4.Rotate around the end grip to lock the clamp. Note: 1.When using the blade do not shake, so as not to affect the quality of operations and to avoid the risk of improper knife blade fracture. 2.As this product is suitable for DIY mini handmade products, so the blade is not imagined strong?Please do not saw hard metal parts, thank you!