1.0PerformanceTrainers.nlhttps://performancetrainers.nl/enadminhttps://performancetrainers.nl/en/author/adminrich600338<blockquote class="wp-embedded-content" data-secret="0Ij5sUzA7d"><a href="https://performancetrainers.nl/en/product/performance-box-volleybal">Performance Box Volleyball</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://performancetrainers.nl/en/product/performance-box-volleybal/embed#?secret=0Ij5sUzA7d" width="600" height="338" title="“Performance Box Volleybal” — PerformanceTrainers.nl" data-secret="0Ij5sUzA7d" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://performancetrainers.nl/wp-includes/js/wp-embed.min.js </script>https://performancetrainers.nl/wp-content/uploads/2022/06/Performance-boxen-5.jpg10801080Een must voor iedere volleyballer die zijn prestaties wil verbeteren! Een fysiek sterke tennisser presteert beter en is minder blessuregevoelig! Wil jij harder slaan en sneller bewegen over de baan? Beter presteren? Start met trainen! Box bevat: 1x Aquatrainer Pro 1x Sprint trainer Pro 1x setje Pro-bands long (5 weerstanden) 1x setje Pro-bands short (5 weerstanden) 1x Volleybal performance schema basis 1x Volleybal performance schema gevorderd 1x Volleybal performance schema expert