How we operate

We begin with a product brief for each item we intend to carry: intended use, target specifications, material requirements, and finish. Suppliers are evaluated on documentation practices, sample quality, and production timelines, not just unit price.

Once approved, we place test orders before larger runs to confirm consistency and refine packaging.

• Products are sourced only through established supply channels.
• Suppliers must provide consistent samples and clear production timelines.
• We order in batches so we can inspect before releasing inventory for sale.

Every inbound shipment is checked against a written acceptance criteria sheet. We inspect a representative sample for authenticity, packaging integrity, model labeling, and lot or serial information. Anything outside tolerance is documented and either rejected or reworked before it enters inventory.

Our quality checks are not a one-time event. We re-verify standards whenever a supplier changes a material, process, or production line.

• Shipments are sampled and inspected before acceptance.
• Defects are categorized and shared back with the supplier for correction.
• We update criteria sheets based on customer feedback and return data.

Orders placed on Shopify or TikTok Shop are routed to our fulfillment partner for picking, packing, and shipping from within the United States. We require tracking on every outbound package.

Most orders ship within 1?2 business days. Transit time depends on your location and the carrier. You will receive a tracking number by email as soon as the label is created.

• Orders are packed according to written packaging standards.
• Tracking is provided automatically at shipment.
• We monitor delivery exceptions and follow up on delayed or lost packages.

We handle support directly. If you have a question about a device, cartridge compatibility, or an order, email ruikai@kjgloballlc.com and we will respond within one business day.

If you are not satisfied with a product, you may return it within 30 days of delivery for a refund, provided it is unused and in original packaging. Opened or used needle cartridges cannot be returned for hygiene and safety reasons. Damaged or incorrect items are replaced or refunded at our expense. See our Shipping and Returns page for the full policy.

• Support is handled directly by our internal team.
• Returns are accepted within 30 days of delivery for unused items in original packaging.
• Opened or used needle cartridges cannot be returned for hygiene and safety reasons.