Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Hotrose US 3 PCS Set Hand Gripper Grip Silicone Ring Resistance Strength Trainer Exerciser
Product description: As for Hotrose: Before we ship, we checked every product carefully, and we try our best to reduce the defect rate. Besides,we have US warehouse, provides 100% guarantee of our items, will bring faster delievery goods and better quicker service. Specifications: 1.One Green Grip : 30-lb 2.One Black Grip : 40-lb 3.One Red Grip 50-lb 4.External external : 88mm 5.Inside diameter : 44mm Package: 1 x Green 30lb grip 1 x Black 40lb grip 1 x Red 50lb grip
Product feature: Three pieces set,which includes 30lb, 40lb and 50lb hand grippers., Material--The grippers are made from premium silicone, the high quality item can strenghten your muscle., Sized especially for adult hands, to maximize the benefits of the exercise and ensure a challenging, yet safe experience., These rings are great for training athletes, and giving their performance a positive boost., Fit for men and women.
Product brand: Hotrose
Target attributes: Type
Answer: attribute: type
value: None
source: None