Weight: Net weight of size 40 is 370 grams, inner length: size 40 inner length 26cm [Douyin dropshipping] Our store supports Douyin distribution, supports secret text orders, and supports Douyin shipping labels. [Regarding After-Sales Service] We support 7-day no-reason returns and exchanges (excluding clearance items).(Does not affect secondary sales) [About the image package] Our store provides image data including high-resolution images, suitable for cross-border e-commerce platforms and various domestic e-commerce platforms. Please [contact customer service] if needed [Factory direct delivery] Supports dropshipping, each item undergoes quality inspection.Shipping costs to Xinjiang and Tibet are 22 yuan, to Inner Mongolia 12 yuan, to Qinghai, Gansu, and Ningxia 8 yuan; shipping costs to other regions of the country are 5 yuan. [Regarding Shipping] Our store defaults to YTO Express and J&T Express, but we can also ship via SF Express and China Post. Customers who need this service, please leave a message. Large orders are shipped by default via Best Express, Huisen, Yimidida and other express delivery services. You can also arrange for self-pickup through logistics. [Regarding Shipping] Orders placed before 5:00 PM on the same day are usually shipped on the same day, while orders placed at other times will be shipped the next day [Regarding Invoices] The prices of the products listed in our store do not include tax. If you need an invoice, additional tax will be charged. Please contact customer service for details [About Sampling] Our shop supports sampling. Please confirm the specific cost and time for sampling with customer service. [About Customization] Most of our products can be customized. The minimum order quantity for customization is 400-500 pairs in a single color. Please contact customer service for details