Cost of shipping will be cheaper, If reaching our minimum order of 10 pieces or more. Please contact us to provide you a private listing in order to get a discount on cost of shipping. 
Shipping cost is considering expensive when order just one or a pair, it is worth to order more.  The shipping cost will charge differently to much cheaper, please contact us in order to get discount rate on cost of shipping.
I cannot set the rate by ebay's system.  So, cost of shipping will be charged at the rate mentioned below;

0-100g (0-3.52Oz)              $11                upto 4   pcs       or  $4.65/piece
101-150g(3.53-5.29Oz)      $12.50           upto 6   pcs       or  $3.98/piece        
151-200g(5.30-7.05Oz)      $14                upto 8   pcs       or  $3.65/piece
201-250g(7.06-8.81Oz)      $16                upto 10 pcs       or  $3.50/piece
251-300g(8.82-10.58Oz)    $17.50           upto 12 pcs       or  $3.35/piece
301-350g(10.59-12.34Oz)  $19                upto  14pcs       or  $3.25/piece
351-400g(12.35-14.10Oz)  $21                upto  16pcs       or  $3.21/piece
401-450g(14.11-15.87Oz)  $22.50           upto   18pcs      or   $3.15/piece
451-500g(0.99-1.1lLb)        $24                upto   20pcs      or   $3.10/piece
501-550g(1.11-1.21Lb)       $26                upto   22pcs      or   $3.08/piece
551-600g(1.22-1.32Lb)       $27.50           upto   24pcs      or   $3.04/piece



Mitsumi High Quality 1/8" Jack Plug Straight 911TRS14EX TRS Stereo Red with Gold Contacts Connector  1/8" 3.5mm professional Sterep jack plug, Red with Gold Plated, very easy solder. 

Robust, strong and is made to IEC standards. The is a standard that all connectors should be made to but unbranded connectors will not follow this standard and cause major issues with connections and even cause damage to your equipment.  I actually DIY cable myself and found Mitsumi connectors are the most comfortable and easiest solder similar to Neutrik's quality but a very affordable price.

Great for making up balanced leads or replacing headphone jack. Choose the boot colour.  The standard boot colour is black with a choice of rear boot colours to make the jack look better and so you will know where the jack is plugged in.

We will send the jack assembled with the boot of your choice. The heavy-duty professional jack plug, a is robust jack plug that will take the knocks from touring and won't let you down.  The precise machined one-piece tip contact without rivets makes it unique and avoids hooking up in a socket or breaking off the tip. The outer shell is Black Chrome not painted, so will take knocks of life on the road and leave the jack looking nice. The plug serves all applications such as guitar applications, audio cables, snakes, speakers, amplifiers, headphones, and mixing desks. 

Features

Extra slim 1/8" plug for highest packing density Robust die-cast shell in a stylish design.

Proven chuck type strain relief for reliable cable retention. The rear boot when screwed into the outer shell provides the force needed for the cord grip to close tightly around the cable.

Sleek design for best-handling convenience
Precision machined one-piece contacts - avoid hook up of tip contact.